Dirt retainer for culverts and pipes



July 20, 1948. N. FRlTscl-l DIRT RETAINER FOR CULVERTS AND PIPES Filed July 3, 1946 #muy M3815 Patented July 20, 1948 UNITED STATES PATENT OFFICE DIRT RETAINER FOR CULVERTS AND PIPES Nicholas Fritsch, Graf, Iowa Application July 3, 1946, Serial No. 681,236

3 Claims.

This invention relates to improvements in dirt retainers for culverts and pipes.

An object of the invention is to provide an improved dirt retainer for culverts and pipes for positioning about the culverts or pipes to retain dirt thereabout when covered over.

Another object of the invention is to provide an improved adjustable dirt retaining collar or bulkhead for placing about culverts or pipes to prevent or retard the dirt from washing away when filled in over the culverts or pipes.

A further object of the invention is to provide an adjustable dirt retaining collar or bulkhead for positioning about culverts or pipes of varying diameters to retain the dirt from washing away when lled in over the culverts or pipes when the same have been laid.

Another object of the invention is to provide an improved sectional and adjustable dirt retaining collar for positioning about a culvert or pipe, the same being reinforced to withstand considerable pressure of dirt when it is built in thereabout to prevent said dirt from washing out during heavy rains thereby preventing wash-outs r other possible serious damage.

Another object of the invention is to provide an improved sectional and adjustable bulkhead for placing about round steel and concrete culverts and pipes, which will be highly eificient in operation, and relatively inexpensive to manufacture and produce.

In the accompanying drawings which form a part of this application,

Figure 1 is a front elevation of the improved sectional and adjustable bulkhead or dirt retaining collar;

Figure 2 is a sectional view taken on the line 2-2 of Figure 1;

Figure 3 is a sectional view taken on the line 3-3 of Figure 1, and

Figure 4 is :a sectional View taken on the line 4-4 of Figure 1.

Like characters of reference are used throughout the following specification and the accompanying drawings to designate corresponding parts.

In carrying out the invention, there is provided an all metal sectional bulkhead generally denoted by the reference numeral I and comprising three segmental shaped sections 2, 3 and 4, whose opposite ends are adapted to extend in parallel relation with adjacent ends of adjacent sections, and to support the L-shaped brackets 5 and 6 secured to the adjacent ends of the segments by welding, or in any other desired manner, said brackets being formed with cooperating apertures l and slots through which the stove bolts 8 are adapted to extend to receive the nuts l5 for holding said bulkhead in the desired adjusted position.

The inner sides of said segments or sections E, 3 and i are arcuate shaped to engage the outer surface of a culvert or pipe 9, while their outer sides are formed with two adjacent connected arcuate edges.

The V-shaped reinforcing angle members I 0, Il and l2 are secured to the surfaces of the segments or sections 2, 3 and ll to reinforce the same and to prevent the same from buckling when in position upon a culvert or pipe 9.

Each segment or section 2, 3 and 4 has one end extending in the same plane with the section, and its opposite end off-set as at I4 to provide a supporting slip-joint for the adjacent segments or sections.

From the foregoing description, it will be apparent that there has been devised a highly eiicient form 0f sectional and adjustable bulkhead for steel or concrete culverts and pipes capable of being adjusted to various diameters of pipes.

While the preferred embodiment of the instant invention has been illustrated and described, it Will be understood that it i's not intended to limit the scope of the invention thereto, as many minor changes in detail of construction may be resorted to without departure from the spirit of the invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

1. A sectional and adjustable bulkhead for conduits including a plurality of segments having inner and outer arcuate edges, said segments including radially extending slip-joints, and means adjustably securing said segments together, the inner arcuate edges forming an eccentrically positioned circular opening in relation to the outer arcuate edges to receive a conduit therein.

2. The combination of claim 1 wherein reinforcing angle braces are secured on said sections.

3. The combination of claim 1 wherein said adjustable means includes apertured brackets secured to the adjacent edges of said segments and retaining bolts extending through said apertures.

NICHOLAS FRITSCI-I.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 884,072 Carey Apr. '7, 1908 980,754 Brannen Jan. 3, 1911 

